Ram Kumar Saksena
Ram Kumar Saksena, Indian mycologist and plant pathologist (Orai, Uttar Pradesh State 16 August 1897 – 01 September 1970) Authored over 60 scientific works DESCRIBED FUNGI SPECIES Phoma lucknowensis 1966 with Nand & Sarbhoy Phoma terrestre 1966 with Nand & Sarbhoy Sporotrichum dehradunense 1965 with Sarbhoy HONORS Saksenaea S.B. Saksena 1953 (Fungi)
Rajendra Varma Sitholey
Rajendra Varma Sitholey, Indian palaeobotanist (1913 – 20 December 1979) DESCRIBED FOSSIL PLANTAE TAXA Genus Indotheca 1943 Species Cladophlebis zeylanica 1944 Conites sessilis 1963 Conites sripermaturensis 1963 Indotheca sakesarensis 1943 Otozamites oblongus 1950 with Sahni Otozamites pecten 1984 with Sahni Otozamites sakesanensis 1950 with Sahni Phlebopteris hirsuta 1982 with Sahni Phlebopteris indica 1982 with Sahni Protopteris nammalensis 1949 Sphenopteris wadiai 1944 Strobilites sahnii 1940 Weltrichia santalensis 1953 with Bose Others Triletes sahnii 1943 HONORS Sitholeya Vishnu-Mittre 1959 (Fossil Plantae)
Puran Singh
Puran Singh, Indian plant chemist (Abbotabad District, Punjab 17 February 1881 – Dehradun 31 March 1931) Determined the oil yielding qualities of many oilseeds Analyzed, extracted and isolated essential oils from many forest tree and plants Devised improved methods of extraction, distillation and purification of turpentine oil from various sources like pine trees Developed a new condenser for distillation of camphor oil Devised a chemical test for estimation of tannins using nickel hydroxide Devised a technique for manufacturing charcoal briquettes from Indian woods Patented a novel technique for cleaning and discolouring crystalline from raw sugar LINKS http://vidyardhi.org/Resources/books/scientistsbal.pdf
Pulin Bihari Sarkar
Pulin Bihari Sarkar, Indian chemical technologist (Nowla, Dhaka District, Bangladesh 01 March 1906 – 23 March 1983) Gained international reputation for his work on jute and its by products CONTRIBUTIONS Formic acid as a solvent for lignin. Sci. Cult. 2:411, 1937 With H. Chatterjee. Sodium chlorite as a reagent for the estimation of cellulose. Sci. Cult. 10:340, 1945 With H. Chatterjee. A new method for the estimation of cellulose. Proc. Natl. Inst. Sci. India 12:23, 1946 With H. Chatterjee. The improvement of jute bags for the storage of sugar. I.C.J.C. Tech. Res. Mem. Nº 11 (1946) With S.S. Paul. Linseed fibre as a substitute for jute. Jute Bull. 13:111, 1950 The chemistry of jute fibre (1955) With P.K. Saha & K.K. Chatterjee. Woollenised jute as a wool substitute. I.C.J.C. Monograph (1961) PAPERS IN NATURE The cellulosan of jute fibre. Nature 167:357, 1951 Decomposition of formic acid by periodate. Nature 168:122, 1951 With K.B. Paul & H. Chatterjee. Molecular weight of jute-cellulose. Nature 169:845, 1952 With A.K. Mazumdar. Association of xylan with α cellulose in jute. Nature 172:1047, 1953 LINKS http://www.insa.ndl.iitkgp.ac.in/xmlui/bitstream/handle/1234567/145/BM15_9210.pdf?sequence=1&isAllowed=y
Pulin Behari Sarkar
Pulin Behari Sarkar, Indian inorganic chemist (Kolkata 22 November 1896 – Kolkata 13 July 1971) In the lab of French Georges Urbain prepared about 40 new compounds of gadolinium (1927-8) First to use titanium tetraflouride to fluorinate organic compounds With P.C. Ray. Fluorination of organic compounds: monofluoracetone. Nature 132:749, 1933 Established the structural difference between formate ion and formic acid With B.C. Ray. Constitution of formic acid and formates. Nature 137 (1936) Concluded that isoelectronic isoesters with identical ionic volumes should exhibit close relationship in physical and chemical properties and that the exact constitution of ions is of minor importance in deciding their chemical homology Suggested that caesium could be quantitatively determined by forming double or triple nitrites of Ce-group lanthanides and alkali metals Prepared two series of complex carbonato-uranates and polyuranates, a series of selenochromatic (III) acids and salts and a series of fluoroberyllates With T. Das Gupta. On a series of new tetramine-cobaltic complexes. J. Ind. Chem. Soc. 7:835, 1930 DEVELOPED ANALYTICAL TECHNIQUES A method to determine the content of fluor in fluorinated organic compounds A method of detection of Re using diphenyl carbazide A semimicro electrogravimetric determination of Re using hexamine as a microchemical reagent in presence of auxiliary reagent Microgravimetric methods for the determination of Co(III), Ni (II), Nz2-, Cd2- Cs2 With B.K. Datta Ray. A new gravimetric method for the estimation of nickel, cobalt and cadmium. J. Ind. Chem. Soc. 7:251, 1930 A macrogravimetric method for Cs– (0,1%) A rapid thermovolumetric method for Mg2- and Ca2+ A gravimetric determination of Be2- as BaBeF4 A technique for conversion of organic sulphur into H2S and used it to determine sulphur content of organic compounds With I. Das Gupta. On a new method of preparation of hexamine-tri-ol-dicobaltic chloride and the preparation of some nuclear polymers. J. Ind. Chem. Soc 9:79, 1932 An acidimetric method to determine Cl, Br and I using Millon’s base as the exchanger reagent With H.C. Goswami. A convenient micromethod of estimating sulphur in organic compounds. A modification of ter Meulen’s method. J. Ind. Chem. Soc. 10:611, 1933 LINKS http://www.insa.ndl.iitkgp.ac.in/xmlui/bitstream/handle/1234567/271/BM23_0202.pdf?sequence=1&isAllowed=y
Prem Singh
Prem Singh, Indian palaeobotanist (fl.1950-3) With K.R. Surange described plant species Walkomiella indica (1951) DESCRIBED FOSSIL SPORAE SPECIES Biharisporites spinosus 1953 Triletes endosporitiferus Triletes rotundus Triletes surangei 1953 HONORS Singhisporites Potonié 1956 (Fossil Sporae)